高中数学代数与函数一其他练习题111
题目内容

设实数x,y满足 http://picflow.koolearn.com/upload/papers/20140824/20140824035342485860.png则点(x,y)在圆面x 2+y 2≤ http://picflow.koolearn.com/upload/papers/20140824/20140824035342500338.png内部的概率为(  )

2021-07-19

A.http://picflow.koolearn.com/upload/papers/20140824/20140824035342500423.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824035342516396.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824035342547474.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824035342547421.png

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